Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
How to shingle a roof using architectural shingles.
How to install architectural shingles or better stated how not to install is an explanation of how to and how not to install architectural shingles.
How to shingle a shed with 3 tab and architectural shingles.
You can cut the layered edge of architectural roof shingles and use the cut flat piece as your starter roof single.
Roll out and staple down roofing felt in overlapping rows.
Attach the starter strip.
Attach each shingle with three nails one in the center and one each on each side.
Starting at the bottom of the roof map out a guideline with chalk.
When laying the shingles for the top row cut 6 inches 15 2 centimeters from the first shingle in the left corner of the roof using the utility knife.
Lay the next row of shingles directly on top of the first row making the row two tiles thick.
Place a whole shingle next to it.
Mark a chalk on subsequent roof layers upward.
Apply a cover of starter architectural shingles.
Install the drip edge over the gable end felt and under the eaves felt.
After that correctly positionthe first shingle and properly snap a line of chalk across the roof to mark the top layer of the shingles.